How big of a system seller are these games for Wii U?

[O-D-C]

Of those 3?

-Animal Crossing will be the biggest boost, I predict half of MK8.
-Zelda could be a seller, but Japan stopped caring a while ago and with WWHD and Hyrule Warriors, Zelda fans might already have a Wii U.
-XCX, will be a modest boost but outside of Japan it won't be as huge.